Overview
SQL Developer Jobs in Toronto, Ontario, Canada at Apptoza Inc.
Title: SQL Developer
Company: Apptoza Inc.
Location: Toronto, Ontario, Canada
Role: SQL Developer
Location: Toronto, ON
Duration: Long Term Contract
Job Description:
SQL Developer with strong expertise in writing and optimizing complex SQL queries. The candidate will be responsible for performance tuning, database development, and ensuring efficient data retrieval to support business applications and reporting needs.
Key Responsibilities
Develop, write, and maintain complex SQL queries, stored procedures, and functions
Perform query optimization and performance tuning
Analyze and improve slow-running queries and execution plans
Design and implement efficient database structures and indexing strategies
Work closely with application and data teams to understand data requirements
Troubleshoot data-related performance issues
Support ETL processes and data transformations (if applicable)
Ensure data integrity, consistency, and security
Document database designs, logic, and optimization techniques
Required Skills
Strong expertise in SQL (Oracle / SQL Server )
Hands-on experience in:
Complex joins, subqueries, and CTEs
Window functions (ROW_NUMBER, RANK, etc.)
Stored procedures, triggers
Experience in query optimization and performance tuning
